Fix core dumping in adapter_mapper.cc
Fix core dumping in adapter_mapper.cc

rseymour/fMBT,CosminNiculae/fMBT,mlq/fMBT,pablovirolainen/fMBT,violep01/fMBT,acozzette/fMBT,CosminNiculae/fMBT,mixu-/fMBT,pablovirolainen/fMBT,heivi/fMBT,OMKR/fMBT,violep01/fMBT,OMKR/fMBT,01org/fMBT,01org/fMBT,01org/fMBT,01org/fMBT,heivi/fMBT,mixu-/fMBT,giantpinkwalrus/fMBT,pombreda/fMBT,mixu-/fMBT,pyykkis/fMBT,pablovirolainen/fMBT,rseymour/fMBT,OMKR/fMBT,heivi/fMBT,pyykkis/fMBT,rseymour/fMBT,violep01/fMBT,pyykkis/fMBT,pablovirolainen/fMBT,CosminNiculae/fMBT,mlq/fMBT,mlq/fMBT,heivi/fMBT,mixu-/fMBT,yoonkiss/fMBT,pombreda/fMBT,CosminNiculae/fMBT,yoonkiss/fMBT,yoonkiss/fMBT,mlq/fMBT,acozzette/fMBT,giantpinkwalrus/fMBT,pyykkis/fMBT,pombreda/fMBT,rseymour/fMBT,OMKR/fMBT,OMKR/fMBT,pombreda/fMBT,mlq/fMBT,giantpinkwalrus/fMBT,pombreda/fMBT,OMKR/fMBT,acozzette/fMBT,giantpinkwalrus/fMBT,heivi/fMBT,violep01/fMBT,CosminNiculae/fMBT,yoonkiss/fMBT,yoonkiss/fMBT,heivi/fMBT,pablovirolainen/fMBT,mlq/fMBT,rseymour/fMBT,heivi/fMBT,rseymour/fMBT,mlq/fMBT,giantpinkwalrus/fMBT,pyykkis/fMBT,violep01/fMBT,rseymour/fMBT,acozzette/fMBT,CosminNiculae/fMBT,CosminNiculae/fMBT,mixu-/fMBT,acozzette/fMBT,pablovirolainen/fMBT,01org/fMBT,pombreda/fMBT,pyykkis/fMBT,pombreda/fMBT